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The “ideal” spectrograph for atmospheric observations

Platt, Ulrich; Wagner, Thomas; Kuhn, Jonas; Leisner, Thomas

Spectroscopy of scattered sunlight in the near-UV
to near-IR spectral ranges has proven to be an extremely useful tool for the analysis of atmospheric trace gas distributions. A central parameter for the achievable sensitivity and spatial resolution of spectroscopic instruments is the étendue
(product of aperture angle and entrance area) of the spectrograph, which is at the heart of the instrument. The étendue of an instrument can be enhanced by (1) upscaling all instrument
dimensions or (2) by changing the instrument F
number, (3) by increasing the entrance area, or (4) by operating many instruments (of identical design) in parallel. The étendue can be enhanced by (in principle) arbitrary factors by options (1) and (4); the effect of options (2) and (3) is limited.

Verlagsausgabe §
DOI: 10.5445/IR/1000139329
Veröffentlicht am 26.10.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Meteorologie und Klimaforschung - Atmosphärische Aerosolforschung (IMK-AAF)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1867-1381, 1867-8548
KITopen-ID: 1000139329
HGF-Programm 12.11.31 (POF IV, LK 01) New observational systems and cross platform integration
Erschienen in Atmospheric Measurement Techniques
Verlag Copernicus Publications
Band 14
Heft 10
Seiten 6867–6883
Vorab online veröffentlicht am 26.10.2021
Nachgewiesen in Scopus
Web of Science
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